the length of a rectangle is four times its width. If the perimeter of the rectangle is 100 cm, find its length and width

Let l = length

Let w = width

l = 4w (length is 4x width)

2l + 2w = 100 (perimeter is two lengths and two widths)

2(4w) + 2w = 100 (substitute)

8w + 2w = 100 (solve)

10w = 100

w = 10

l = 4(10) (plug in)

l = 40

The length of the rectangle is 40in and the width is 10i

Step-by-step explanation:

spinning a 1, 2, or 3. option d.

step-by-step explanation: when spinning a number graph up to 4, and aiming for any number less than 3, that automatically eliminates the number 4. now you have two numbers to spin on that are less than 3, but the number 3 is included in this question because it's no greater of an number than itself. i hope this you : )